A customer applies a rich burgundy shadow to her eyelid. Three hours later, the color settles into her crease. The outer corner wears away completely. She blames the eyeshadow. In reality, her oily eyelids broke down the formula. A Highly Pigmented Eyeshadow from Cnweiya, produced by VEYA Cosmetics, undergoes wear testing on simulated skin types. Yet many brands skip this step. This situation...